航天员是真正的“天之骄子”,要想当一名航天员,可不是一件容易的事。在人类开始载人航天的初期,人们还没有亲身体验过太空环境,只知道那里环境恶劣,对人的生命有种种威胁,因此,认定人进入太空是件极 Astronaut is a real “favorite”, to be an astronaut, is not an easy task. In the early days of mankind's start of manned space flight, people had not yet experienced the space environment in person, and only knew that the environment there was bad and threatened human life. Therefore, it was extremely considered that people would enter space